Heating-stove



e. s. ScAn'onouGH.

HEATING STOVE.

APPLlcAwN man hv/2.1919.

Patented June 15, 1920.

2 SHEETS-SHEET l.

G. G. SCAHBOROUGH.

HEATING STUVE'. APPLICATION FILED MAY 2. I9I9.

Patented June 15, 1920.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

GEORGE G. SGARBOROUGH, 0F GIRDLETREE, MARYLAND.

Application filed May 2, 1919.

shipment, and may be quickly and con veniently assembled.

A further object of the invention is to provide a stove of the above-mentioned character, having a magazine feed for the fuel, such as coalor the like, together with means to prevent the fuel being subjected tothe action of excessive heat, for a substan-` tial period, prior to itsVintroduction into the fire box of the stove.

A further object of the'invention is to provide a stove of theabove-mentioned character, which is simple in construction, inexpensiveto manufacture, strong and durable.

Other objects and vention will be apparent during the course of thefollowing description.

In the accompanying drawings forming a part of this specification, andin which like numerals are employed to designate like parts throughoutthe same:

Figure l is a central vertical longitudinal sectional view through astove embodying my invention;

Fig. 2 is a horizontal sectional view, taken on line 2-2 of Fig. 1;

Fig. 3 is a similar view, taken on line 3--3 of Fig. l;

Fig. 4 is a perspective view of an inner shell included in the stove;

Fig. 5 is a similar view of a sealing ring or washer;

Fig. G is a similar view of an annular cap or cover; and,

Fig. 7 is a similar view of a fuel feeding magazine.

In the drawings, wherein for the purpose of illustration is shown apreferred embodi ment of my invention, the numeral 10 desig nates acylindrical body portion, having a grate 11, which divides the same intoan upper lire-box 12 and a lower ash-pit 13. The

Specification of Letters Patent.

advantages of the in- HEATING-srovn.

Patented June 15, 1920. Serial No. 294,243.

body portion 10 is supported by legs 14, and

a swinging' door 15 controls access to the ash-pit and may be employedto regulate the entrance of air beneath the grate 11.

At its upper end, the body portion 10 is provided Vwith an annular heatabsorbing and radiating element 16, having a substantially thick crosssectional area. This element has a lower inclined face 17, and is provided with an upstanding annular iange 18.

The numeral 19 designates a doubled wall casing, arranged upon theelement 16, andV embodying an outer cylindrical shell 20, snuglyreceiving the annular flange 18, and forming therewith a gas-tightjoint. This doubled wall casing further comprises an inner cylindricalshell 21, having a substantially smaller diameter, providing an annularpassage22 for the escape ofthe heated gases and products of combustion.This inbeyond the same to rest upon the fiange '18.

The numeral 27 designates a preferably vertical tubular fuel feedingmagazine, eX- tending longitudinally through Y' the inner shell 21, andthrough an opening 28, lin the bottom 23 of the inner shell 21. Themagazine 27 fits loosely in the opening 28 and is provided with anannular flange 29 contacting with the bottom, to support the magazine,and closing the opening 28, thereby efJV fecting a gas-tight jointbetween the magazine 27 and the bottom 23. The lower end of the tubularmagazine 27 projects into the upper end of the fire-box 12, as shown.The upper end of the tubular magazine 27 eX- tends through an opening30, 'formed in the lid 24, and this opening is preferably larger indiameter than the magazine. The opening 30 is covered by a sealing ringor washer 31, snuglyv receiving the upper end of the magazine 27, andslidably contacting with the upper surface of the lid 24. Particularattention is called to the fact that the magazine 27 has a much smallerdiameter than the inner shell 21, thereby providing a dead air chamber32 which is annular in horizontal cross section and surrounds themagazine 27, such space 32 having a substantial cross sectional area andserving as eiective heat Vner shell 21 has abottom 23, while its top isl insulating means between the magazine 27 and the passage 22. It isthus seen that the Aio coal or fuel within the upper portion of themagazine 27 will not be subjected to excessive heat, for effecting itsdestructivedistillation, for a substantial period, prior to itsdischarge from the lower end of the magazine, into the fire-box. Thefuel in the lower portion of the magazine substantially closes the samethereby protecting the fuel in the upper.portionffrom excessiveheat. Asthe fuel in the lire-box isconsumed, the fuel in flange 37,.such lidbeing preferably equipped witlifa handle 38. T he cover 32 is providedoutwardly ofi its tubular portion 35 with a tubularcoupling 39., adapted4for vconnection with a stove'pipe 40, in communication with the passage2 2, forlthe escape of the products of combustion.

In the use .off` he stove,rthe lire is built in Vthe fire-boX l2,and-the fuel .for thispurpose may lbe .introduced .through the magazinefterthe fireis started, .coal or the like isl fed into the magazinenre-box is substantially filled vwith Vthe coal and `the tubular.magazine -is also substantially filled. The products of combustion orheated gases dischargey through :the passage 22 .of the` doubled wall,casing 19, :and

27, until the i through the stove pipe 40 to the atmosphere. T hechamber 32 serves to effectively insulate the tubular magazine 27 by thepassage A22. The coal in the lower endV of the magazine substantiallycloses the same, thereby preventing the vproducts of combustiontraveling upwardly therein, and protecting the coal in the upper portionthereof from the `action of excessive heat, which would tend to effectits destructive distillation.

It `is to be understood .that the form of my invention herewithshown'and described is to be taken as the preferred. example of thesame', and that various changes in the shape, size, and arrangementofparts may be resortedyto without departing fromthe spirit of myinvention or the Y`,scope of-the subj oined` claim. Y

Having thus claim: e Y i Y- ln a self-.feeding stove, Vthe icombinat-ion with an outer shell and an inner'shell ardescribed myinvention, I

'ranged within the outerf slielland spaced therefrom, saidinner shellbeing provided with a bottom having a central opening and a coverforfsaiddnner shell, said cover .being providedwith'an opening-inalinement with the-bottom opening,of a fuel magazine ar- Y ranged within`said inner *shell and projecting beyond `the ends thereoffsaid magazinebeing provided-with a flange adapted to rest upon` thel bottom` of saidinner shell-to 'support the magazine, a `sealing ringsnugly fitting said`magazine and resting onsaid cover, atop having an outer 'fiange toengage said outer shelland an inner flange toreceive said magazine'fandmaintain it inposif tion, and a cover for said magazine rest- Jing onsaidftop. I v

In testimony whereof laflix iny signature.

.GEORGB G. SCARBORQUGH.

